四川省建设厅安全员报名网站/怎么制作微信小程序
对于android中的手势识别，效果如下图所示：
模拟器中有个可以添加手势的工具Gestures Builder，可以添加手势如下图所示：
当添加手势成功后，会在Sdcard上产生保存的手势的文件gestures，如下图所示：
你需要把sdcard中的gestures文件拷贝到项目中去
手势识别的完整的代码如下：
package com.example.demo1;
import java.util.ArrayList;
import android.app.Activity;
import android.gesture.Gesture;
import android.gesture.GestureLibraries;
import android.gesture.GestureLibrary;
import android.gesture.GestureOverlayView;
import android.gesture.Prediction;
import android.gesture.GestureOverlayView.OnGesturePerformedListener;
import android.os.Bundle;
import android.widget.Toast;
public class MainActivity extends Activity implements OnGesturePerformedListener {
GestureLibrary mLibrary;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
GestureOverlayView gestures = (GestureOverlayView) findViewById(R.id.gestures);
gestures.addOnGesturePerformedListener(this);
mLibrary = GestureLibraries.fromRawResource(this, R.raw.gestures);
if (!mLibrary.load()) {
finish();
}
}
@Override
public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {
ArrayList predictions = mLibrary.recognize(gesture);
// We want at least one prediction
if (predictions.size() > 0) {
Prediction prediction = (Prediction) predictions.get(0);
// We want at least some confidence in the result
if (prediction.score > 1.0) {
// Show the spell
Toast.makeText(this, prediction.name, Toast.LENGTH_SHORT)
.show();
}
}
}
}
布局文件的代码如下：
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
android:id="@+id/gestures"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1.0"
/>